New version: MLJModels v0.17.0

[JuliaRegistrator]

• Registering package: MLJModels
• Repository: https://github.com/JuliaAI/MLJModels.jl
• Created by: @ablaom
• Version: v0.17.0
• Commit: 5340efe2ae90f0eaf9f076a29f4601ff3944d8ae
• Reviewed by: @ablaom
• Reference: Issue to trigger new releases JuliaAI/MLJModels.jl#263 (comment)
• Description: Home of the MLJ model registry and tools for model queries and mode code loading
• Release notes:

- (**mildly breaking**) The `FeatureSelector` appearing in the Model Registry (as inspected using `models()`) is now provided by the FeatureSelection.jl package (`pkg = FeatureSelection`) instead of the MLJModels.jl package. This reflects a code migration, not a change in behaviour of the model. The only foreseeable breakage is any code with a call like `@load FeatureSelection pkg=MLJModels`; which was always redundant anyway, because the model never required explicit loading in MLJ.

- (**new models**) Add the `RecursiveFeatureElimination` model wrapper to the model registry (this will be a built-in model in next MLJ release). 

- (**new feature**) Model wrappers, such `TunedModel`, `BalancedModel` and `IteratedModel`, can now be listed using `models(...; wrappers=true)`.

- (**internals**) The `name` of a model in the Model Registry now reflects the name a model constructor instead of a model type (which are the same for all current models that aren't composite models aka, model wrappers). Model wrappers (or other models with contractor names different from the type) must overload a new trait `MLJModelInterface.constructor` to define the constructor for each type. For example, we now have `constructor(::DeterministicTunedModel) = TunedModel`. For more on this, see #558.

[github-actions]

Your new version pull request met all of the guidelines for auto-merging and is scheduled to be merged in the next round.

---

If you want to prevent this pull request from being auto-merged, simply leave a comment. If you want to post a comment without blocking auto-merging, you must include the text [noblock] in your comment. You can edit blocking comments, adding [noblock] to them in order to unblock auto-merging.